Stadium: Court 5 Round: 26 Ground: Hardcourt outdoor
| ITF M25 Meitar | 2021/11/03 09:55 | Arnaud Bovy v Yunseong Chung | 6-4,3-6,6-4 |
| ITF M25 Meitar | 2021/11/02 08:00 | Joshua Luck v Yunseong Chung | 3-6,1-6 |
| Challenger Columbus | 2021/09/21 14:00 | Yunseong Chung v Ji Sung Nam | 6-3,4-6,6-7 |
| Challenger Columbus | 2021/09/20 14:00 | Alexis Galarneau v Yunseong Chung | 4-6,4-6 |
| Challenger Columbus | 2021/09/19 18:35 | Justin Boulais v Yunseong Chung | 6-7,3-6 |
| ATP Winston-Salem | 2021/08/21 20:10 | Yunseong Chung v Yosuke Watanuki | 3-6,6-7 |
| ITF M25 Decatur | 2021/08/06 17:10 | Yunseong Chung v Eliot Spizzirri | 4-6,4-6 |
| ITF M25 Decatur | 2021/08/05 17:55 | Jumpei Yamasaki v Yunseong Chung | 2-6,2-6 |
| ITF M15 Monastir | 2021/12/08 08:25 | Josh Reid v Adria Soriano Barrera | 2-6,4-6 |
| ITF M15 Monastir | 2021/11/14 11:00 | Josh Reid v Alan Bojarski | 5-7,3-6 |
| ITF M15 Monastir | 2021/11/07 08:30 | Alessandro Coccioli v Josh Reid | 7-5,6-2 |
| ITF M15 Monastir | 2021/11/01 14:00 | Martin Katz v Josh Reid | 6-1,6-1 |
| ITF M15 Monastir | 2021/11/01 09:00 | Josh Reid v Jonas Greif | 7-5,3-6,13-11 |
| ITF M15 Monastir | 2021/10/31 11:30 | Josh Reid v Skander Ben Fraj | 6-2,6-0 |
| ITF M15 Monastir | 2021/10/24 08:00 | Luca Sanchez v Josh Reid | 6-3,6-0 |
| ITF M15 Monastir | 2021/10/18 09:30 | Natthasith Kunsuwan v Josh Reid | 7-5,6-1 |